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fix for SQL_CALC_FOUND_ROWS in UNION's

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unknown
2002-04-03 17:52:31 +03:00
parent 576530f771
commit 36701f1840
4 changed files with 17 additions and 1 deletions
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7
mysql-test/r/union.result
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@ -89,6 +89,13 @@ table type possible_keys key key_len ref rows Extra
t1 ALL NULL NULL NULL NULL 4
t2 ALL NULL NULL NULL NULL 4 Using filesort
t1 ALL NULL NULL NULL NULL 4
(select sql_calc_found_rows a,b from t1 limit 2) union all (select a,b from t2 order by a) limit 2;
a b
1 a
2 b
select found_rows();
FOUND_ROWS()
6
explain select a,b from t1 union all select a,b from t2;
table type possible_keys key key_len ref rows Extra
t1 ALL NULL NULL NULL NULL 4

3
mysql-test/t/union.test
View File

@ -21,7 +21,8 @@ select 't1',b,count(*) from t1 group by b UNION select 't2',b,count(*) from t2 g
(select a,b from t1 limit 2) union all (select a,b from t2 order by a limit 1);
(select a,b from t1 limit 2) union all (select a,b from t2 order by a limit 1) order by b desc;
explain (select a,b from t1 limit 2) union all (select a,b from t2 order by a limit 1) order by b desc;
(select sql_calc_found_rows a,b from t1 limit 2) union all (select a,b from t2 order by a) limit 2;
select found_rows();
# Test some error conditions with UNION
explain select a,b from t1 union all select a,b from t2;